23 MPG (US) to L/100km
10.2 L/100km
23 mpg = 10.2 L/100km.
L/100km
10.2L/100km
23 mpg = 10.2 L/100km
The short answer
How many L/100km is 23 MPG (US)?
23 mpg = 10.2 L/100km. L/100km = 235.214583 ÷ MPG (US), so the working is 235.214583 ÷ 23 = 10.2.
The working
MPG (US) and L/100km are reciprocals of each other, so the conversion is a division rather than a multiplication — which is why the two scales never line up evenly.
L/100km = 235.214583 ÷ MPG (US) 235.214583 ÷ 23 = 10.2
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (L/100km) | Off by |
|---|---|---|
| Whole number | 10 | −0.22672 |
| 1 decimal | 10.2 | −0.02672 |
| 2 decimals | 10.23 | +0.00328 |
Round trip: take 10.2 L/100km back the other way and you land on 23.0603 mpg — a drift of 0.0603 mpg. That gap is the rounding, not the conversion.
What 23 mpg looks like
22 mpg
Any new American car rated below 22.5 mpg combined on the unadjusted test attracts the federal gas guzzler tax.
Frequently asked questions
What is 23 MPG (US) in L/100km?
23 MPG (US) is 10.2 L/100km. L/100km = 235.214583 ÷ MPG (US), so the working is 235.214583 ÷ 23 = 10.2.
How accurate is 10.2 L/100km?
Rounding to 10.2 L/100km and converting straight back gives 23.0603 mpg, a drift of 0.0603 mpg from the 23 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
MPG to L/100km Converter
Convert US MPG to L/100km — read a car’s economy the way the rest of the world quotes it.
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